Are there any special requirements for 20Mnmo forgings + stainless steel cladding?
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I have a question: I manufactured a flange cover made of 16Mn with a 31603 surfacing layer, and the calculated thickness exceeds 300 mm, which is above the limit specified in GB150. I’m preparing to modify the material and would like to ask if there are any experts who have experience with welding on 20Mnmo forgings. Are there any special requirements for welding on 20Mnmo forgings? Would it not work if we refer to the same requirements as for 16Mn+ cladding?
There are some special requirements to note for 20MnMo forgings + stainless steel surfacing. 1. Material selection: For 20MnMo forgings, a stainless steel that is compatible with them must be selected for surfacing welding. Depending on the requirements of the surfacing material and the operating environment, an appropriate stainless steel material can be selected. 2. Welding process: During the welding of 20MnMo forgings, it is necessary to control the temperature and heat input carefully in order to avoid excessive stress and deformation. At the same time, it is important to maintain the stability of the material’s chemical composition and properties. 3. Mechanical properties: After surfacing, 20MnMo forgings require corresponding heat treatment and cooling processes to ensure that their mechanical properties meet the standard requirements. If the modification is carried out based on the requirements for 16Mn+ surfacing, it may not be sufficient to meet the special requirements of 20MnMo forgings. It is recommended to consult a professional materials engineer or welding engineer to determine the best material selection and welding process based on the specific circumstances. .
Cladding should be divided into two types: manual cladding and electrode-clad cladding. There are articles introducing manual surfacing; another reference could be the welding specifications for high-pressure urea production equipment manufactured by Nanhua Machinery.
The same; 20Mnmo doesn’t have anything special either
This is ChatGPT’s answer, right? :L